[Hitch]

All:

I have some comments, if I may.

Doits, Harry: the PDS has been providing "standard" (by which I mean what you are all calling "hybrid" mobis, which to me are standard mobis) KF8 files from viable source material for some months now.

All:

With regard to Amazon and fonts, firstly, using .otf is asking for trouble. Quiris, you should have an almost identical experience testing the file at KDP; I expect/suspect that your fonts will "disappear" from the preview file, which you'll download and unpack.

This phenomena, of fonts literally disappearing from files, has been ongoing for nearly a year now. We have found it to happen with some foundry fonts, (Adobe particuarly, FWIW) and in a high percentage of .otf font files. We've stopped accepting/using any otf's at my shop, for this reason--more brain-damage than it's worth. (Or, if there's no way around it, we'll try a font-forge conversion, but even then, with some fonts, it will still strip. We are not sure of the genesis. I have indeed alerted Amazon, at the upper-echelons, of the occurrence thereof. Thus far, they've pretty much ignored the issue.)

@Doits:

As the PDS is now more equivalent to KDP's upload process (not 100%, but ~95%), I fully expect that his issue will remain an issue, that the fonts will be stripped at KDP. I can't be certain that this will happen, but it's my best "gut hunch" based on our experiences with the same issue.

FWIW, gents, that's my experience on this.

Hitch